Featured Here's why I don't transport gasoline in plastic containers...

Winter gas often has butane dissolved to aid cold starting. It is not found in summer gas. I learned this when trying to assaying ethanol.

Bob Wilson

 

That's also what I am trying to say, I do not think permeation thru the plastic was the cause of the Hummer fire. There are plenty of other explanations, leaks, spills, vapor from the lids, etc.

 

what's holding back 50psi of fuel pressure in your car ?

orings, lines , and injectors made of ....

i do not know. no way there is ANY PLASTIC in those pieces. nope. nu uh. unpossibull

 

Nicely observed, but that isn't inconsistent with permeability. Permeability is a real thing, but it's a slow thing. A/C hoses can be permeable to the refrigerant molecules too. That was a particular problem for the various alternative refrigerants that were coming out a couple decades ago that were blends, because the different components would be lost through the hoses at different rates and the blends would change.

But this is a phenomenon measured over months and years and in grams or milligrams. Nobody's saying the walls aren't "holding back" the pressure in real time.

That's why permeation probably isn't going to be the answer to why this Hummer burned up right after filling the cans.

 

Pollution and deterioration of the fuel are valid reasons to not use the plastic gas cans. Fire safety isn't.

It is possible to have permeation through a metal, just not likely.

From the photo of the truck, looks like it started in the engine bay.

Can't speak on a car's fuel system, but the 100k psi pressure vessel at work uses metal to metal compression fittings.

 

Y'all seem to be ASSuming that the plastic material is at or near to the minimum spec's for permeability but nobody seems to KNOW.
How about posting some facts about the actual construction material instead of this worthless discussion about "the sky is falling" because vapors are leaking through the sides of my can ????

No, sorry, that likely is too much to ask.

 

NO. GASP.
How DARE you inject facts are reasoning into a discussion here.
It's blasphemy I say.

 

Nothing wrong with buying the safest can available.
I only have a smaller red plastic can for the mower.
If I decided on a bigger can for emergency fuel, I'd research for the best cans for sure.